Study of non-minimal SUSY SU(5) model with realistic fermion sectors

Details Study of non-minimal SUSY SU(5) model with realistic fermion sectors Study of non-minimal SUSY SU(5) model with realistic fermion sectors

2011-01-18

arxiv.org/abs/1101.3424v1

JHEP 1101:074,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

10.1007/JHEP01(2011)074

We study a supersymmetric SU(5) model with the extra Higgs multiplets of 45+\bar 45. The unification of the gauge couplings, the fermion masses and the proton lifetime are discussed in details. The dimension-five operators mediated by different colored Higgs sector can be destructive with each other. This effect serves a way of solving the longevity of proton. We analytically analyze this destructive effect in a special limit where the mixing between the 5- and 45-plets is small. Although the theory does not hold in this special limit, it is a revelatory starting point. We can relax this limit and retain the destructive effect. In a generalized parameter space, this model is in accord with experimental results.

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